
Sportsman, the 156th chapter of Sakamoto Days, has Kumanomi wreck the museum with an electromagnetically hauled crane truck while Shin, stripped of his ESP, cracks the sports-based logic behind Haruma's attacks and lands a decisive blow.
Shishiba admits he has been trailing Amane through the exhibition and only now learned the young man is the son of Satoru Yotsumura, which leaves him unsure of Amane's aims. Still, he has to turn his focus back to the fight in front of him.
Anxious that Uzuki is exposed alongside Nagumo and Asaki, Kumanomi decides to hurry things along. She uses her electromagnetic power to drag a crane truck into the museum, smashing it through the structure and startling everyone, then hurls it at her enemies, forcing Shishiba, Shin, and Amane to scatter. Seizing the confusion, Carolina Reaper blindsides Amane with a clothesline from behind, pulling Shishiba's attention and exposing him to a follow-up strike from Kumanomi's crane boom.
Shin, meanwhile, faces a duel with his life on the line. Robbed of his ESP and battered by repeated blows, he concedes he is outmatched by Haruma in a straight fight. Falling back on his wits, he spots the pattern beneath Haruma's moves, each tied to a different sport. Recognizing that the attacks obey the rules of their sports, Shin reads and answers each one, judging Haruma's leap by his stance and posture. With careful timing, he exploits a pause created by a perceived foul to drive a decisive strike into Haruma's gut, hurling him into the wall.
Shishiba realizes Amane is the son of Satoru Yotsumura. Kumanomi uses her electromagnetic power to crash a crane truck into the museum and hurl it at her foes. Carolina Reaper blindsides Amane with a clothesline, leaving Shishiba open to Kumanomi's crane boom. Shin, stripped of his ESP, deduces that Haruma's attacks follow the rules of different sports and uses that pattern to predict his moves and land a decisive blow that slams him into the wall.
Appearing in Volume 18 as part of the Assassin Exhibition of the Century Arc, this chapter's Japanese title Supotsuman means Sportsman, referencing the sports-themed logic of Haruma's fighting style. It rewards Shin's reliance on deduction over his lost precognition and ties Amane's background to Satoru Yotsumura.

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In Sakamoto Days Chapter 156, "Sportsman," Kumanomi uses her electromagnetic power to smash a crane truck into the museum and hurl it at her enemies, while Shin, stripped of his ESP, works out that Haruma's attacks follow sports-based patterns and lands a decisive hit that sends Haruma into a wall.
In Chapter 156, Shin realizes that each of Haruma's attacks mimics the rules of a different sport, so he reads Haruma's stance and timing like an athlete would and exploits a pause created by a perceived foul to land a decisive strike into Haruma's gut.
In Chapter 156, Shishiba realizes that Amane is the son of Satoru Yotsumura, though he remains unsure of what Amane is actually trying to accomplish.
In Chapter 156, Carolina Reaper blindsides Amane with a clothesline from behind, which pulls Shishiba's attention away and leaves him open to a follow-up strike from Kumanomi's crane boom.
Sakamoto Days Chapter 156, titled "Sportsman," is part of the Assassin Exhibition of the Century Arc and appears in Volume 18 of the manga.
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